Hey there! We just published version 1.1 right now - so I'd download that and try it. There was a whole host of bugs that were fixed (including one or two that caused the issue you're describing.)
If you're still having an issue after updating, please let me know. (The window that pops up should stay open and give you reports about connection status and messages and such. If that window closes something is crashing and SPICE won't connect to Twitch.)





